参数资料
型号: MC34844EPR2
厂商: Freescale Semiconductor
文件页数: 11/62页
文件大小: 0K
描述: IC LED DVR BACKLIGHT 10CH 32QFN
视频文件: LED backlighting with MC34844
标准包装: 2,500
恒定电流:
拓扑: PWM,升压(升压)
输出数: 10
内部驱动器:
类型 - 主要: 背光
频率: 可调节/可选择
电源电压: 7 V ~ 28 V
输出电压: 8 V ~ 60 V
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-QFN 裸露焊盘(5x5)
包装: 带卷 (TR)
工作温度: -40°C ~ 105°C
配用: KIT34844EPEVME-ND - BOARD EVAL 10CH MC34844 LED DVR
MC34844
ELECTRICAL CHARACTERISTICS
STATIC AND DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. Static and Dynamic Electrical Characteristics (continued)
Characteristics noted under conditions V IN = 12 V, V OUT = 42 V, I LED = 50 mA, PWM = VDC1, M/~S = VDC1,
PIN & NIN = VDC1, - 40 ° C ≤ T A ≤ 105 ° C, PGND = 0 V, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
NIN INPUT
Voltage to Disable NIN mode
NIN Bias Current
V NIN_DIS
I NIN
2.2
-2.0
-
-
-
2.0
V
μ A
NIN = V SET
Analog Dimming Current
ICHx Register = 255, RISET=5.1 k Ω 0.1%
I DIM_NIN
mA
NIN = V SET /2
NIN = 0 V
23.75
47.50
25
50
26.25
52.50
OVER-TEMPERATURE PROTECTION
Over-temperature Threshold (10)
O TT
°C
Rising
Hysteresis
150
-
165
25
175
-
I C/SM BUS PHYSICAL LAYER [SCK, SDA]
2
I 2 C Address
SM-Bus Address
Input Low Voltage
Input High Voltage
Input Hysteresis
Output Low Voltage
ADR I2C
ADR SMB
V ILI
V IHI
V HYSI
V OLI
-
-
-0.3
2.1
0.3
-
1110110
1110110
-
-
-
-
-
-
0.8
5.5
-
0.4
Binary
Binary
V
V
V
V
Sink Current < 4.0 mA
Input Current
I INI
-5.0
-
5.0
μ A
Input
Capacitance (10)
C INI
-
-
10
ρ F
LOGIC INPUTS / OUTPUTS (CK, M/~S, PWM, A0/SEN)
Input Low Voltage
Input High Voltage
Input Hysteresis
Input Current
Output Low Voltage (CK)
V ILL
V IHL
V HYSL
I IIL
V OLL
-0.3
1.5
-
-5.0
-
-
-
0.1
-
-
0.5
5.5
-
5.0
0.2
V
V
V
μ A
V
I SINK < 2.0 mA
Output High Voltage (CK)
V OHL
2.2
-
5.5
V
I SOURCE < 2.0 mA
Input Capacitance (10)
C INI
-
-
5.0
ρ F
Notes
10. Guaranteed by design
34844
Analog Integrated Circuit Device Data
11
Freescale Semiconductor
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